標題: | GLOBAL SHAPE INFORMATION MODELING AND CLASSIFICATION OF 2D WORKPIECES |
作者: | WU, MC CHEN, JR JEN, SR 交大名義發表 工業工程與管理學系 National Chiao Tung University Department of Industrial Engineering and Management |
公開日期: | 1-九月-1994 |
摘要: | This paper presents a representation scheme for modelling the global shape information of 2D workpieces and uses this representation scheme to classify workpieces. The global shape information of a workpiece could be seen as its topological structure. Retrieving workpieces with similar global shape would facilitate some design and manufacturing activities. To derive the proposed representation scheme, a 2D workpiece first has to be approximately enclosed by a rectilinear polygon. Then, the simplified skeleton of the rectilinear polygon, a tree structure consisting of a set of line segments, is derived. The line segments on the simplified skeleton involve two types: real links and virtual links. In this paper, we prove that each real link models a rectangular region, and the union of the modelling regions of all real links is equal to the region enclosed by the rectilinear polygon. Briefly, the simplified skeleton of a rectilinear polygon denotes a global decomposition of the polygon, and is topologically similar to the polygon. On the basis of simplified skeletons, a neural network approach is developed for classifying 2D workpieces. |
URI: | http://dx.doi.org/10.1080/09511929408944615 http://hdl.handle.net/11536/2329 |
ISSN: | 0951-192X |
DOI: | 10.1080/09511929408944615 |
期刊: | INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING |
Volume: | 7 |
Issue: | 5 |
起始頁: | 261 |
結束頁: | 275 |
顯示於類別: | 期刊論文 |